CVE-2020-12676

Katalog CVE

CVSS 9.1 · Critical EPSS 2,9%

Kerentanan Improper Verification of Cryptographic Signature pada fusionauth samlv2. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

FusionAuth fusionauth-samlv2 0.2.3 allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack".

Rincian

Terbit di NVD

2 Oktober 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

9.1 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

2,9% peluang dieksploitasi; lebih tinggi dari 86,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://compass-security.com/fileadmin/Research/Advisories/2020-06_CSNC-2020-002_FusionAuth_Signature_Exclusio... exploit · mailing list · advisory vendor
• http://packetstormsecurity.com/files/159454/FusionAuth-SAMLv2-0.2.3-Message-Forging.html exploit · advisory pihak ketiga · vdb entry
• http://seclists.org/fulldisclosure/2020/Oct/1 exploit · mailing list · advisory pihak ketiga
• https://github.com/SAMLRaider/SAMLRaider advisory pihak ketiga
• https://www.nds.ruhr-uni-bochum.de/media/nds/veroeffentlichungen/2012/08/22/BreakingSAML_3.pdf exploit · advisory pihak ketiga